Mr Miyagi, saying Skrtel is one oft he best Cbs in the league isn't really saying much, not saying he is Thiago Silva or anything. But we're in a generation with ever so few cbs you could call top class, in fact i could probably count them on one hand and still have a finger or two left. Kompany regarded by the best defender over the last couple years, has been abysmal over the past year or so.
Cahill has had a stop and start season, in the last one and no one could argue ihe is top quality.
Then we've got Terry, the best of the bunch, but currently with his age only in a system that Mourinho employs.
Koscieny is the other one i rate very highly and i would have him alongside Terry as the best defender in the league. Sakho i think will reach that level or even pass it soon with a season of consistent football.
Past that you start to struggle, so the assertion that Skrtel is one of the best cbs really isn't an outlandish claim, he doesn't get half the protection some of these cbs in other teams do, and he actually has been one of the better defenders in the league if you take into consideration his last two years.